TO 00-25-172 - Robins Air Force Base

TO 00-25-172
(3) Position servicing equipment as far from any portion
of the aircraft as cables/hoses will allow.
Maintenance stands shall be properly positioned
to obtain easy access to filler caps.
Some USAF aircraft use a commercial hydraulic
fluid, which is not compatible with standard Air
Force hydraulic fluids. Make sure that the aircraft
technical orders and TO 42B2-1-3 requirements
are followed to prevent contamination.
b. Servicing Containers.
(1) When servicing from cans or drums, ensure that
cleanliness and product integrity are maintained.
(2) Keep each product segregated and properly identified.
(3) Carefully read the label before dispensing oil and
hydraulic products to ensure the correct product
is being used.
4.27 DRUM AND CONTAINER SERVICING.
Drum and container servicing will be in accordance with the
following procedures:
a. Drum Fuel Servicing. When servicing aircraft and/or
ground support equipment/vehicles from drums, the
same grounding and bonding procedures used for aircraft
fuel servicing shall apply. The fuel should be in
the original sealed drum whenever possible. During
emergencies and/or combat situations, drums may be
filled with fuel by base fuels service personnel. Extreme
care must be taken to ensure drum cleanliness.
Drums which have previously contained chemicals,
oils, or halogenated hydrocarbons shall not be used for
fuel.
(1) Water and sediment are often found in fuels stored
in drums. These contaminants must be removed
prior to servicing from drummed stock.
(2) Aviation fuel shall be passed through a filter or
filter separator prior to delivery into aircraft fuel
tanks. Before delivery to aircraft or equipment,
test each drum for water by using a drum sampling
thief or other siphoning device.
b. Fuel Collection Containers. Containers/bowsers will be
parked in a designated storage area approved by the
base fire department and included in the base environmental
protection plan. Parked fuel collection containers
do not need to be grounded at anytime, but need to
be bonded whenever filling or graining operations are
being accomplished. Do not use plastic sheets to cover
fuel bowsers, bladders, nor other containers; the sheets
can collect static electricity that can discharge near fuel
vapors. Oil or hydraulic fluids will not be stored in
containers/bowsers stenciled for reclaimed fuel.
4.28 WATER, WATER-ALCOHOL, AND ENVIRON-
MENTAL FLUID SERVICING.
Cleanliness must be maintained in water, water-alcohol, and
environmental fluid servicing. Fluids must be kept free of
sediment at all times. Any aircraft water servicing (including
potable water and demineralized water) may be accomplished
simultaneously with fuel servicing or oxygen servicing
provided that the fuel or oxygen servicing equipment is
moved into the area and bonded prior to the start of any one
operation. Grounding/Bonding of the water truck is not required.
In addition, bonding wires must not be disconnected
while any servicing pressurization or transfer is in progress.
Fuel servicing by refueling trucks, hydrant hose carts or hydrant
servicing vehicles is authorized simultaneous with water
servicing unless there is a critical interference positioning
problem with the servicing vehicles. There are no restrictions
on servicing an aircraft with water during maintenance,
cargo handling, or passenger loading.
a. Demineralized water is used for thrust augmentation in
some jet engines. Quality control requirements are
covered in TO 42C-1-16.
(1) Demineralized water vehicle positioning for aircraft
servicing will be accomplished in accordance
with procedures in TO 36A12-13-1-
131CL-1. The preferred method for all aircraft
water servicing is to position the water truck either
forward or aft of the aircraft, perpendicular
(90°) to the direction of the fuselage.
(2) If ambient temperature is below 40 °F (5 °C),
demineralized water will not be used in aircraft
unless a system is provided to heat water supply.
(3) Water servicing may be accomplished inside hangars
with Group Commander approval if servicing
vehicle is outside hangar or if full length of
servicing hose is used and hangar doors are open.
b. Environmental fluids consist of antifreeze and coolant
mixture of water, demineralized water, propylene glycol
and ethylene glycol. These fluids are primarily used
in cold weather operations to service coolant for radar
components.
(1) A ground liquid cooler cart, as described in TO
35E10-19-1 and TO 35E10-22-1, is used to ser-
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